Hoisting apparatus.



J. M. PlERCE.

HOISTING APPARATUS.

APPLICATION FILED MAY 21. 19m.

lfisagas Patented Dec. 31,1918.

an earns rerun rare.

JOHN M. PIERCE, OF NEW YORK, N. Y., ASSIGNOR TO FREDERICK C. AUSTIN, OF.

CHICAGO, ILLINOIS.

HOISTING APPARATUS.

Specification of Letters Patent.

Patented Dec. 31, 1918.

Application filed May 27, 1916. Serial No. 100,199.

To all whom it may concern Be it known that I, JoHN M. PIERCE, a citizen of the United States of America, and resident of New York city, N. Y., 554 W.

173rd street, have invented a certain new and useful Improvement in Hoisting Apparatus, of which the following is a specification.

My invention relates to hoisting-apparatus of the kind in which a bucket travels up and down a track or runway extending upwardly to the desired place of discharge.

The object of my invention is to provide a novel and improved construction which will enable the bucket to receive its load at the lower end of the said track or runway, and in which means are provided for enabling the bucket to automatically discharge its load without tilting from its carrying position, when the bucket reaches the desired place of discharge above, as will hereinafter more fully appear.

It is also an object to provide certain details and features of construction and combinations tending to increase the general efficiency and desirability of a hoisting-apparatus of this particular character.

To these and other useful ends, my inven tion consists in matters hereinafter set forth and claimed.

In the accompanying drawings Figure 1 is a side elevation of a hoistingapparatus embodying the principles of my invention.

Fig. 2 is a plan view of the revolving spout which receives the discharge from the bucket, and which is then turned in any desired direction to deliver the materials in the desired manner.

As thus illustrated, my invention comprises a vertically disposed track or runway A and a bucket B having rollers 12, or other suitable means, to engage said track or runway, thereby to keep the bucket always in carrying position while it slides up and down. '1 e bucket has a-ball 1 to which 1s attached the hoisting-cable 2 that travels over the sheave 3 suitably mounted at the top of the track or runway. Said bucket has a spout 4 provided witha curved gate 5 which is provided with arms 6 that are pivoted at 7 upon the sides of the spout, so that when this gate is raised by rotating it about its horizontal axis 7 the lower end of the spout will be opened. Links 8 are secured to the said pivot or axis of the gate, so that they form crank-arms for rotating the gate, and'a chute 9 is pivoted upon the lower ends of said links, in an oil-center manner, so that the outer end portion is longer than the inner end portion. This chute will rest fiatwise on the ground when the bucket moves downward to loading position, as shown in Fig. 1. Rollers 10 are suitably mounted on the sides of said chute. Inclined guides 11 are secured to the upper portion of the track or runway and provided with hooks 12 at their outer ends. When the bucket moves upward, the short end of the chute 9 is moved downward to tilt the chute into the position shown in dotted lines at 13, and the upward movement of the bucket will finally bring the rollers 10 into engagement with the guides 11, so that the chute will finally be tilted into the position shown in dotted lines at 14, the hooks 12 engaging the said rollers on the chute to limit the upward motion of the bucket. This tilting of the chute operates the links or crank-arms 8 in a direction to raise the gate 5, which latter is curved about its axis of rotation, so that it will open easily. This will allow the bucket to discharge its load into the chute.

The spout C has its upper end portion 0 provided with a swivel-mounting 15 which enables it to turn about a vertical axis, said swivel being carried by the frame-work 16 which also supports the said track or runway. The upper end of thisswivel has a pivot 17 which enables the spout G to tilt about a horizontal axis. It will be seen that the portion 0 of the spout is practically round in outline, when viewed from above (see Fig. 2), so that its edge will always be under the end of the chute 14, regardless of the direction in which the spout C is turned. When the bucket travels upward, the longer end of the chute 9 is tilted upward and passes the edge of the spout portion a, but

the automatic tilting of the chute 9 then, brings its longer end downward upon the edge of the spout-portion c in the manner "indicated in dotted lines. Thus, the load is discharged from the bucket into the upper end of the spout C, and then from the latter materials are delivered to the different places where they are needed. When the bucket starts downward, the weighted endportion 18 (this weight counteracts the tendency of the chute to tilt downward at its outer end) of the chute 9 tilts the latter back into the position shown at 13, so that it will pass the upper end of the chute C, and when the bucket reaches the lower end of its path of travel the chute 9 can rest upon the ground to support the bucket, or to permit the latter to assume a position low enough to receive the load from a concrete mixer, or from any other source. But, as previously explained, the chute 9, by reason of its weighted end. 18, tilts into the position shown at 13 as soon as it starts upward.

It will be understood that the track Ais duplicated at the other side of the bucket, so that the latter travels up and down between the two tracks.

My invention is adapted for use in various Ways and for various purposes, but is more especially adapted for use as a spouting-device for concrete mixers. The concrete-mixer D 'may be of any suitable or known construction, being preferably mounted on wheels (not shown) and provided with a body for supporting the frame 16 upon.

which the tracks A are supported above the 4 ground. The bucket B' receives the load rom the mixer when in lowered position. Thus, the street-machine thus provided may deliver the concrete wherever wanted.

It will be seen'that the frame 16 is fixed on the mixing machine, or on the frame or body of this machine, and overhangs the street. Consequently, the vertical track A for the bucket is disposed directly over the street, with nothing below it, being disposed in position at a point some distance from the side or rear end of the mixing machine. In this way, the entire elevating and spouting apparatus overhangs the street, and is not arranged above the mixing machine, but forms an overhanging adjunct disposed in position to receive the load from the spout of the mixer, and to then elevate the load and thereafter spout it downward onto the street. For this purpose, the spout C is not only-pivoted to swing about the vertical axis provided by the element 15, but is also adapted to swing up and down about the horizontal axis 17, so that the lower end of this'spout can be raised or lowered to suit the convenience of those in charge of the work, and may rest on any object which will serve as a support therefor. When the machine is transported from one place to another, the spout C can then be permitted to hang downward so that it will not be in the way.

While the invention is shown in connection with a portable mixing plant, such as those employed in making concrete street paving, it will be understood that the invention is not limited to any particular use. and that for the broader purpose of the in "ention, the arrangement can be used for spouting or delivering the concrete to any desired point or place, the structure to be built from the concrete being of any suitable or desired character. The bucket B, it

will be seen, comes down to a point below the overhanging frame-work to receive the load, and, with the construction shown and described, receives the load while resting on the ground or on the street, or on any surface placed below the depending portion of the vertically disposed track or guideway.

What I claim as my invention is 1. A hoisting-apparatus comprising an upwardly extending track, a bucket movable up and down on said track and having a discharge-spout provided with an upwardly opening pivoted gate curved to move edge- Wise about the horizontal axis thereof, means to raise and lower the bucket, mechanism to automatically raise said gate and open said spout when the bucket reaches the desired place of discharge above, said mechanism including a chute'pivotally connected with said gate, and said track having means to move said chute into position to receive the discharge from said spout and thereby open said gate. 7

2. A hoisting-apparatus comprising an upwardly extending track, a bucket movable up and down on said track and having a discharge-spout provided with an upwardly opening pivoted gate, means to raise and lower the bucket, and mechanism to automatically raise said gate and open said spout when the bucket reaches the desired place of discharge, said mechanism including a tilting chute hung on the pivot of said gate, inclined guides on said track, and

means on the chute to engage said guides and thereby tilt the chute into position to open said gate and receive the discharge from said spout.

3. A hoisting-apparatus comprising an upwardly extending track, a bucket movable up and down on said track and having a discharge-spout provided with an upwardly openlng plvoted gate curved to move edge- .wise about the horizontal axis' thereof, means,

to raise and lower the bucket, mechanism to automatically raise said gate and open said spout when the bucket reaches the desired place of discharge above, said mechanism including inclinedguides disposed in fixed position adjacent said track, and means tov said bucket, and means to form a fixed axis a discharge-spout provided with an upwardly opening pivoted gate curved to move edgewise about the horizontal axis thereof, means to raise and lower the bucket, and mechanism to automatically raise said gate and open said spout when the bucket reaches the desired place of discharge above, said mechanism including a tilting chute which forms asupport for said bucket in loading position.

6. A hoisting-apparatus comprising an upwardly extending track, a. bucket movable up and down on said track and having a discharge-spout provided. .with an upwardly opening pivoted gate curved to move edgewise about the horizontal axis thereof, meansto raise and lower the bucket, and mechanism to automatically raise said gate and open said spout when the bucket reaches the desired place of discharge above, said mechanism including a chute which rests horizontally on the ground when the bucket is lowered into loading position. 7 In a hoisting apparatus, a bucket having an exit opening, opening, a chute normally located beneath said bucket, means pivotally connected with said bucket for freely suspending said chute therefrom, so that said chute is movable about a fixed axis and a movable axis, and means whereby said chute is automatically operated about both of said axes and swung bucket up and down said spout, a frame extending outwardly in a movable door for said on its pivotal connections laterally of said bucket to an operative position in advance of said exit opening and back again.

8. In a portable mixing plant, the combination of mixing machine, a bucket to receivethe discharge from the mixing machine and for'carrying the load upward, a

spout disposed at a height to receive the dis-.

charge from the bucket and for distributing the mixture below, means for operating said past the upper end of the direction of the discharge from said bucket to support both spout in an overhanging position so that the bucket in lowered position is supported by the ground to receive the load, a tilting chute carried by the bucket to discharge the load into said spout, a gate operated by said chute, and means for engaging said chute to automatically open the gate and cause the discharge of'the load into said spout.

9. A structure as specified in claim 8, said spout being mounted to swing laterally, and said. frame having means including a vertical pivot for supporting the upper end of said spout at a fixed helght.

10. A structure as specified in claimv 8, said frame having a track for said bucket, and said track having a depending lower end portion to hold the bucket in loading posi- Signed by me at New York city, New York, this 22 day of May, 1916.

' JOHN M. PIERCE.

Witness:

W: A: camtion while resting on the ground.

the bucket and said 

